We factory is a professional rebar cap manufacturer.The rebar caps are meant to prevent rebar rusting from rain,water, etc. Rebar Safety Caps are specifically designed for use in the construction industry and fit over the ends of protruding bars reducing the risk of injury. Rebar cap is important to rebar workers and everyone around them. The raw material is plastic,Material is 100% polyethylene, color ordered by request, if the rebar cap still in good condition and the fins are not broken,they may be reused. This type fit the rebar diameter from 8mm to 32mm.